Parahellenia, a new genus segregated from Hellenia (Costaceae) based on phylogenetic and morphological evidence.

ABSTRACT: Previous studies recognized three major lineages of the family Costaceae: a South American clade, an Asian clade and a Costus clade. However, the genus Hellenia within the Asian clade has been shown to be non-monophyletic and its morphology has not been studied carefully. Therefore, the complete plastid genomes of Hellenia species were obtained and the monophyly of Hellenia was tested through four different datasets in this study. Plastid phylogenomic analyses of Costaceae revealed that Hellenia is strongly supported as paraphyletic. Two major clades are recovered, namely the Hellenia s.s. subclade and the Parahellenia subclade. Phylogenetic analyses based on an enlarged taxon sampling of the Asian clade using a two chloroplast markers datas

SUBMITTER: Chen J 

PROVIDER: S-EPMC9363654 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature